Handle pointer-events: none in browser process hittesting.

content/renderer/child_frame_compositing_helper.h

Index: content/renderer/child_frame_compositing_helper.h
diff --git a/content/renderer/child_frame_compositing_helper.h b/content/renderer/child_frame_compositing_helper.h
index d2d4e78cda2510a40c87334415d1d23c5db862c5..707955cafa8b7ef7cc15f3241f040e3fb25bd0ad 100644
--- a/content/renderer/child_frame_compositing_helper.h
+++ b/content/renderer/child_frame_compositing_helper.h
@@ -15,6 +15,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
+#include "cc/surfaces/surface_id.h"
 #include "content/common/content_export.h"
 #include "ui/gfx/geometry/size.h"
 
@@ -23,7 +24,6 @@ class SharedMemory;
 }
 
 namespace cc {
-struct SurfaceId;
 struct SurfaceSequence;
 
 class CompositorFrame;
@@ -79,6 +79,8 @@ class CONTENT_EXPORT ChildFrameCompositingHelper
   void UpdateVisibility(bool);
   void ChildFrameGone();
 
+  cc::SurfaceId surface_id() const { return surface_id_; }
+
   // cc::DelegatedFrameProviderClient implementation.
   void UnusedResourcesAreAvailable() override;
 
@@ -146,6 +148,7 @@ class CONTENT_EXPORT ChildFrameCompositingHelper
   scoped_refptr<cc::DelegatedFrameProvider> frame_provider_;
 
   scoped_ptr<blink::WebLayer> web_layer_;
+  cc::SurfaceId surface_id_;
   blink::WebFrame* frame_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildFrameCompositingHelper);